Mechanical hand model lever lifting mechanism
By combining a three-axis cylinder and a circular guide structure, the problem of the robot arm being unable to grip the mold bar in a confined space is solved, and a stable lifting and low-cost robot arm mold bar lifting mechanism design is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG LINSELL MASCH CO LTD
- Filing Date
- 2025-08-03
- Publication Date
- 2026-06-19
Smart Images

Figure CN224374084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mold lever lifting mechanism, specifically a robotic arm mold lever lifting mechanism. Background Technology
[0002] On automated production lines, robotic arms are used for mold rod handling. Most robotic arms on production lines are suitable for simple spaces with little interference from other equipment. Currently, the mainstream robotic arm lifting mechanisms in the industry mostly adopt traditional structures such as screw drive, cylinder drive, or hydraulic drive. When there are structures such as fixed shafts in the middle of the robotic arm, the available space for the robotic arm to catch the mold rod is greatly compressed. In a limited space, the space given to the robotic arm to catch the mold rod is very small, and the robotic arm cannot directly grab the material on the mold rod.
[0003] Therefore, a robotic arm lifting mechanism is proposed to solve the problems mentioned above. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a robotic manipulator mold lever lifting mechanism. A three-axis cylinder at the top of the frame drives the support block to rise and fall. The support block is positioned on the side of the hollow square tube near the frame to avoid the central axis. Simultaneously, a smooth round bar slides within the slider, guiding and supporting the lifting of the support block, ensuring stable lifting and lowering of the support block within a confined space. This raises the mold lever for easy gripping by the robotic arm, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a frame, with one or more mounting plates on the top of the frame. Each mounting plate has a three-axis cylinder on its side away from the frame. The telescopic ends of multiple three-axis cylinders are connected to a support block. A hollow square tube is provided at the top of the frame, and a slider is provided on the side of the hollow square tube near the mounting plate. A smooth round rod slides inside the slider, and the smooth round rod cooperates with the support block to guide the lifting and lowering of the support block and provide support.
[0006] Preferably, the mounting plate is fixed to the hollow square tube at the top of the frame by welding, the number of mounting plates corresponds one-to-one with the number of the three-axis cylinders, and the multiple three-axis cylinders are all connected to an external air source and move up and down synchronously.
[0007] Preferably, multiple sliders are provided on the side of the hollow square tube near the mounting plate, and the multiple sliders, mounting plates and smooth round bars are symmetrically arranged along the central axis of the frame.
[0008] Preferably, a square iron is provided between the top of the three-axis cylinder and the support block, one side of the square iron is fixedly connected to the top of the three-axis cylinder, and the other side of the square iron is connected to the support block.
[0009] Preferably, the bottom surface of the support block is provided with a hollow connecting square tube, the side of the hollow connecting square tube near the support block is fixedly connected to the support block, and the side of the hollow connecting square tube near the support block is provided with a smooth round bar bracket, which is used to fix the top end of the smooth round bar.
[0010] Preferably, the support block, the triaxial cylinder, and the smooth cylindrical bar are all disposed on the side of the hollow square tube near the frame.
[0011] Preferably, the top of the support block has a mold rod mounting hole, and the mold rod is fixedly mounted on the support block through the mold rod mounting hole.
[0012] Compared with the prior art, this utility model provides a robotic arm lifting mechanism, which has the following advantages:
[0013] 1. The support block is raised and lowered by the extension and retraction of the three-axis cylinder at the top of the frame. The support block is set on the side of the hollow square tube close to the frame to avoid the central axis. At the same time, the smooth round bar slides in the slider, which guides and supports the raising and lowering of the support block, ensuring that the support block can be raised and lowered stably in a narrow space, thereby raising the mold bar for easy gripping by the robot arm.
[0014] 2. The overall structure of the equipment is simple to install and has a low cost. It can operate in complex spaces with equipment interference. By raising the mold bar, it effectively solves the problem that the robot arm cannot complete the gripping action under limited space conditions. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 A side view of the lifting mechanism for the robotic arm of this utility model;
[0017] Figure 2 A front structural schematic diagram of the lifting mechanism of the robotic arm mold bar of this utility model;
[0018] Figure 3 A schematic diagram of the manipulator manipulator lifting mechanism of this utility model;
[0019] Figure 4 A schematic diagram showing the installation position of the manipulator manipulator manipulator lifting mechanism of this utility model.
[0020] In the diagram: 1. Frame; 2. Mounting plate; 3. Three-axis cylinder; 4. Support block; 5. Hollow square tube; 6. Slider; 7. Round bar; 9. Square iron; 10. Hollow connecting square tube; 11. Round bar bracket; 12. Mold bar mounting hole; 13. Mold bar. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example:
[0023] Please see Figure 1 - Figure 4 The robotic arm lifting mechanism in this embodiment includes a frame 1. One or more mounting plates 2 are welded to the top of the frame 1. A three-axis cylinder 3 is fixedly installed on the other side of each mounting plate 2. The telescopic ends of the multiple three-axis cylinders 3 are connected to a support block 4. The multiple three-axis cylinders 3 are all connected to an external air source and lift and lower synchronously.
[0024] Frame 1 serves as the foundation of the entire mechanism. The mounting plate 2 on top of frame 1 is fixed by welding, eliminating the need for complex connecting parts. Mounting plate 2 is used to fix three-axis cylinders 3. The three-axis cylinders 3 are connected to the mounting plate by bolts, allowing the three-axis cylinders 3 to be stably installed on frame 1. The synchronous lifting and lowering of multiple three-axis cylinders 3 can ensure that the support block 4 is subjected to uniform force and avoid tilting during lifting and lowering. The top of the support block 4 has a mold bar mounting hole 12. The mold bar 13 is fixedly installed on the support block 4 through the mold bar mounting hole 12. The three-axis cylinders 3 drive the support block 4 to lift and lower through extension and retraction, assisting the mold bar 13 in completing the lifting and lowering action, which is convenient for the robot arm to grasp.
[0025] Two hollow square tubes 5 are provided at the top of the frame 1. A slider 6 is installed on the surface of the hollow square tube 5 near the mounting plate 2. A smooth round bar 7 is slidably connected inside the slider 6. The smooth round bar 7 is used to guide the support block 4 and support the support block 4 at the same time. When the three-axis cylinder 3 drives the support block 4 to rise and fall, the smooth round bar 7 guides the support block 4. At the same time, only one side of the support block 4 is supported. When the support block 4 is under force, multiple smooth round bars 7 provide tension to the support block 4.
[0026] The hollow square tube 5 provides the mounting base for the slider 6. The cooperation structure between the slider 6 and the smooth round bar 7 is simple, using common components and low cost. When the smooth round bar 7 slides along the slider 6, it controls the lifting direction of the support block 4 and achieves the guiding function. The single-sided force design means that when the support block 4 is under force, multiple smooth round bars 7 provide tension together, which enhances the safety and stability of the structure. The support block 4, the three-axis cylinder 3 and the smooth round bar 7 are all set on the side of the hollow square tube 5 close to the frame 1, which can avoid the central axis located on the other side of the frame 1, solve the problem of limited space, and enable the mechanism to operate in a limited space.
[0027] Furthermore, a square iron 9 is fixedly connected to the top of the triaxial cylinder 3, and a support block 4 is connected to the other side of the square iron 9. A hollow connecting square tube 10 is fixedly connected to the bottom surface of the support block 4, and the side of the hollow connecting square tube 10 closest to the support block 4 is fixedly connected to the support block 4. The square iron 9 is used to level the support block 4 during installation. The square iron 9 has different thicknesses. When installing the support block 4, the thickness of the square iron 9 is increased or decreased to level the support block 4, which facilitates the connection of multiple triaxial cylinders 3 to the support block 4. The hollow connecting square tube 10 is used to install the smooth round bar bracket 11 and connects with the smooth round bar 7, which can provide sufficient tensile force to the structure, making it safe and stable. The hollow connecting square tube 10 provides an installation position for the smooth round bar bracket 11. The smooth round bar bracket 11 fixes the top of the smooth round bar 7, making the connection between the smooth round bar 7 and the support block 4 more secure. The hollow connecting square tube 10 and the smooth round bar 7 work together to provide sufficient tensile force, further enhancing the structural safety.
[0028] Multiple sliders 6 are provided on one side of the hollow square tube 5. Multiple sliders 6, mounting plates 2 and smooth round bars 7 are symmetrically arranged along the central axis of the frame 1. The top of the support block 4 is provided with a mold rod mounting hole 12. The mold rod 13 is fixedly installed on the support block 4 through the mold rod mounting hole 12. The symmetrical arrangement of sliders 6, mounting plates 2 and smooth round bars 7 makes the force on the support block 4 more uniform when it rises and falls, thus improving stability.
[0029] The working principle of the above embodiment is as follows: an external air source drives multiple three-axis cylinders 3 to extend and retract synchronously. The three-axis cylinders 3 drive the support block 4 and the mold rod 13 to rise and fall through the square iron 9. The smooth round rod 7 slides along the slider 6 to achieve guidance. The smooth round rod bracket 11 fixes the top of the smooth round rod 7. The hollow connecting square tube 10 enhances the tensile force. The symmetrical structure ensures the balance of force. When the smooth round rod 7 slides along the slider 6, it controls the lifting direction of the support block 4 to achieve the guiding function. The single-sided force design means that when the support block 4 is under force, multiple smooth round rods 7 provide tensile force together, which enhances the safety and stability of the structure. The support block 4, the three-axis cylinders 3 and the smooth round rod 7 are all set on the side of the hollow square tube 5 close to the frame 1, which can avoid the central axis located on the other side of the frame 1, solve the problem of limited space, and enable the mechanism to operate in a limited space.
[0030] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[0031] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A robot arm link lifting mechanism characterized by: The system includes a frame (1), with one or more mounting plates (2) on the top of the frame (1). Each mounting plate (2) has a three-axis cylinder (3) on the side away from the frame (1). The telescopic ends of the multiple three-axis cylinders (3) are connected to a support block (4). The top of the frame (1) has a hollow square tube (5). The hollow square tube (5) has a slider (6) on the side near the mounting plate (2). A smooth round rod (7) slides inside the slider (6). The smooth round rod (7) cooperates with the support block (4) to guide the support block (4) to rise and fall and provide support.
2. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: The mounting plate (2) is fixed to the hollow square tube (5) at the top of the frame (1) by welding. The number of mounting plates (2) corresponds one-to-one with the number of three-axis cylinders (3). All three-axis cylinders (3) are connected to an external air source and move up and down synchronously.
3. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: Multiple sliders (6) are provided on the side of the hollow square tube (5) near the mounting plate (2), and multiple sliders (6), mounting plate (2) and smooth round bar (7) are symmetrically arranged along the central axis of the frame (1).
4. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: A square iron (9) is provided between the top of the three-axis cylinder (3) and the support block (4). One side of the square iron (9) is fixedly connected to the top of the three-axis cylinder (3), and the other side of the square iron (9) is connected to the support block (4).
5. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: The bottom surface of the support block (4) is provided with a hollow connecting square tube (10). The hollow connecting square tube (10) is fixedly connected to the support block (4) on the side close to the support block (4). The hollow connecting square tube (10) is provided with a smooth round bar bracket (11) on the side close to the support block (4). The smooth round bar bracket (11) is used to fix the top end of the smooth round bar (7).
6. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: The support block (4), the triaxial cylinder (3), and the smooth round bar (7) are all located on the side of the hollow square tube (5) near the frame (1).
7. The robotic arm mandrel lifting mechanism according to claim 1, characterized in that: The top of the support block (4) is provided with a mold rod mounting hole (12), and the mold rod (13) is fixedly installed on the support block (4) through the mold rod mounting hole (12).